Untitled

Air Traffic Control Simulator

// create a simulator class

class Simulator {
  // define variables
  private int maxPlanes = 10;
  private int numPlanes = 0;
  private List<Plane> planes = new ArrayList<Plane>();
  
  // constructor
  public Simulator() {
    
  }
  
  // add a plane to the simulator
  public void addPlane(Plane plane) {
    if (numPlanes < maxPlanes) {
      planes.add(plane);
      numPlanes++;
    }
    else {
      System.out.println("Too many planes in the simulator!");
    }
  }
  
  // remove a plane from the simulator
  public void removePlane(Plane plane) {
    if (numPlanes > 0) {
      planes.remove(plane);
      numPlanes--;
    }
    else {
      System.out.println("No more planes in the simulator!");
    }
  }
  
  // get the number of planes in the simulator
  public int getNum